I would put the Joule/Vandersteen 5A room as being the most long term listenable of all the rooms. It had a natural, easy and well balanced tone with the best soundstaging of all the rooms. The speakers simply vanished as the music began to play. That room redefined the word, "musical."
I could own that room and never want for more. Considering the price of the 5A's, they once again make a mockery of costlier speakers, a feat Richard Vandersteen has done since he started in the business. No wonder customers love him and competetors hate him.